Arvinox isn't a creature unless you control three or more permanents you don't own. At the beginning of your end step, exile the bottom card of each opponent's library face down. For as long as those cards remain exiled, you may look at them, you may cast permanent spells from among them, and you may spend mana as though it were mana of any color to cast those spells.

Enchant noncommander creature You control enchanted creature. Enchanted creature gets +2/+2 and can't be blocked unless it's attacking its owner or a permanent its owner controls.

Nontoken creatures you control get +1/+1 and have vigilance.

At the beginning of each upkeep, creatures you control gain flying until end of turn if a creature you control has flying. The same is true for fear, first strike, double strike, landwalk, protection, trample, and vigilance.

Creatures your opponents control enter tapped. Whenever a creature an opponent controls enters, you gain 1 life.

Enchant creature Enchanted creature has vigilance and "At the beginning of your end step, create a 1/1 white Human creature token."

Enchant creature Enchanted creature has "At the beginning of your upkeep, create a 1/1 white Human creature token."

You have hexproof. (You can't be the target of spells or abilities your opponents control.)

Whenever a creature you control deals combat damage to a player, you may draw a card. {1}{U}, {T}: Creatures your opponents control attack this turn if able.

At the beginning of your first main phase, choose one or more — • Sell Contraband — Create a Treasure token. You lose 1 life. • Buy Information — Draw a card. You lose 2 life. • Hire a Mercenary — Create a 3/2 colorless Shapeshifter creature token with changeling. You lose 3 life. (It has every creature type.)

Whenever a creature you control deals combat damage to an opponent, you may draw a card.

Enchant creature Enchanted creature gets +2/+2. Enchanted creature has vigilance as long as you control a black or green permanent.

Enchant creature Enchanted creature gets +1/+1 for each artifact and/or enchantment you control.

Enchant creature Enchanted creature gets +2/+2 for each Aura attached to it and has vigilance.

Enchant creature Enchanted creature has double strike. (It deals both first-strike and regular combat damage.)

Enchant creature Enchanted creature gets +3/+2 and has vigilance.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Enchant creature Enchanted creature gets +0/+2 for each other creature you control.

Enchant creature or Vehicle As long as enchanted permanent is a Vehicle, it's a creature in addition to its other types. Enchanted creature gets +2/+2 and has flying.

Enchant creature Enchanted creature gets +1/+0 and can't be blocked.

Creatures you control have flying. Creatures your opponents control lose flying and can't have or gain flying.

Enchant creature Enchanted creature gets +1/+1 for each Plains you control and has flying.

Enchant creature When this Aura enters, untap enchanted creature. You control enchanted creature. When enchanted creature dies, return that card to the battlefield under its owner's control.

Constellation — Whenever this creature or another enchantment you control enters, exile target player's graveyard.

Enchant creature Enchanted creature gets +3/-3.

Flash (You may cast this spell any time you could cast an instant.) Enchant creature When this Aura enters, tap enchanted creature. Enchanted creature doesn't untap during its controller's untap step.